PR5 — Oryza sativa Indica Group

Summary

BGIOSGA023608 (PR5, also known as OiPR5, TOND1, and OSML) on chromosome 6 of Indica rice encodes a thaumatin-like protein with glucan endo-1,3-beta-D-glucosidase activity, IgE binding, and mRNA binding. It is associated with grain yield, nitrogen deficiency tolerance, and breeding traits, as well as responses to bacteria, fungi, viruses, UV-B, cadmium, ethylene, and abscisic acid. The protein localizes to the apoplast, cell wall, vacuole, plasmodesmata, secretory vesicles, and mitochondria. It is linked to defense responses, systemic acquired resistance, disease resistance to pathogens including Pseudomonas syringae and Verticillium dahliae, insect resistance, salt tolerance, and stress responses. Studies of related genes in other species connect the family to induced systemic resistance, pathogen resistance, herbivore defense, seed germination under salt stress, and cell wall integrity.